Passports will need to be under 10 years old and valid for at least six months from departure, while travelers are also advised to check health insurance requirements for next year as European insurance cards disease will no longer be valid.
Some EU countries do not recognize UK driving licenses, and holidaymakers wishing to drive will need to obtain an international driving license.
Pet owners face some of the most daunting rule changes: European pet passports will be made invalid after Brexit, and anyone wishing to take a cat or dog to Europe will need to complete an application process for four months.
The government is also warning that UK travelers will no longer automatically benefit from free data roaming, although most mobile networks have confirmed that they will not introduce charges.
Read more: How travel to Europe will change after Brexit